Blade adjusting means for safety razors



Nov. 3, 1953 H. B. CARTER 2,657,459

BLADE ADJUSTING MEANS FOR SAFETY RAZORS Filed Aug. 6, 1951' Fig. 2 Fig- 3 3 9 l6 9 p//// /6 /2 l5 LLHq l-lI-Ll-lLl 4 Harry B. Carter INVENTOR.

Patented Nov. 3, 1953 UNITED STATES PATENT OFFICE BLADE ADJUSTING MEANS FOR SAFETY RAZO 2 Claims.

1 My invention relates to blade adjusting means for safety razors of the type forming the subject matter of my U. S. Letters Patent No. 2,482,152, dated September 20, 1949, and over which the instant invention is designed as an improvement. I

The primary object of my invention is to provide in a safety razor in which the blade, guard, and holder are tiltable as a unit to vary the shaving angle of the blade, improved means for variable tilting those parts and locking the same in tilted position to the handle of the razor, and providing for adjustment of the guard relative to the edge of the blade in every tilted position of the blade, guard, and holder.

Another object is to provide for accomplishing the above by simply constructed inexpensive means which will not materially increase the cost of manufacture of the razor.

Other and subordinate objects, within the purview of my invention, together with the precise nature of my improvements will be readily understood when the succeeding description and claims are read with reference to the drawings accompanying and forming part of this specification.

In said drawing:

Figure 1 is a view in side elevation of a safety razor embodying my invention;

Figure 2 is a view in front elevation;

Figure 3 is a view in longitudinal section taken on the lines 3-3 of Figure 2;

Figure 4 is a fragmentary view in longitudinal section taken on the line 4-4 of Figure 1;

Figure 5 is a fragmentary view partly in side elevation and partly in longitudinal section, and

Figure 6 is a view in perspective of the guard and holder drawn to a larger scale.

Referring to the drawing by numerals, the type of sofety razor with which my improvements are concerned includes a cylindrical handle '5 provided at its front end with a U-shaped extension yoke 6 including resilient side legs I formed with terminal apertures 8. The blade 9 is pivoted for tilting adjustment in the yoke 6 between the legs 1 by end trunnions II on said blade adapted to be entered in the apertures 8 by springing the legs 1 apart. The blade 9 rests upon a toothed backing guard I2 having a central transverse countersink l3 therein and a central transverse slot 14 in the countersink for a purpose presently seen. The guard l2 fits in and is backed by a relatively narrow U-shaped holder [5 having right angled end legs I6 adapted to fit between the legs I, said guard being adjustable transversely of the holder I 5 and transversely of the cutting edge of the blade 9 and secured to said holder I5 in transversely adjusted position by a clamping screw l1 extended through a central hole l8 in the holder l 5 and through the slot M with a flat head [9 thereon fitting in the countersink I3, said screw having a wing nut l9 thereon in the back of the holder l5.

According to my improvements, the legs l6 of the holder [5 are each provided with a slot 20 at right angle to the plane of the holder for straddling the trunnions II and so that said holder, together with the guard 12 clamped thereto, may be positioned in the yoke 6 and thrust forwardly of the handle '5 to enter the legs l6 between the ends of the blade 9 and the legs 1 and also enter the trunnions H in the slots 20 with the guard 12 engaging the blade 9. The holder I5 is thus positioned in the yoke 6 and is pivotally mounted on the trunnions l I for tilting about said trunnions, together with the guard II, to tilt the blade 9 about its pivotal axis into different shaving positions.

Means are provided, in accordance with my invention, for locking the blade 9, guard l2, and holder [5 in difierent adjusted tilted positions and the guard l2 engaged with the blade 9 and which will now be described. A handle forming lever '2 5, integral with the guard 12, extends from the rear edge and center of said guard in the rear of the yoke 6 and handle 5 to ride alongside the same and terminates in a right angle free end, or lug 2'6 fitting in a transverse slot 21 formed in the front end portion of a handle 5. The free end 2.6 frictionally engages the bottom of the slot 21 so as to maintain the guard l2 engaged with the blade 9.

The handle '5 is provided with a threaded, axial bore 28 in its rear end, and with an axial counter bore 29 extending from the bore 28 to the slot 21. A locking pin 30 is threaded into the bore 28 with a reduced front pin section '3! fitting in the counter bore '29 for locking engagement with the free end 26 of the lever 25. A suitable finger grip knob 32 is provided on the outer end of the pin 30. The free end 26 is provided with a hole 33 therein and the pin may be adjusted to extend the section 3| through said hole and into a socket '34 in the handle 5 to lock the lever 25 with the blade 9 tilted at a shaving angle suitable for most users. However, by withdrawing the pin 30, the lever 25 may be swung to tilt the blade 9 at other angles, in a manner which will be clear, and the pin 30 then adjusted to clampingly engage the section 3l with the free end 26 to lock 3 said lever 25 and the blade 9 in the selected position of adjustment. The lever 25 is preferably of zig-zag form longitudinally to position its free end 26 close to the handle 5.

As will now be seen, the blade 9 may be tilted into a number of angular shaving positions in the yoke 6 by means of the lever 25 and locked in such positions by means of the lever 25 and pin 30, and in any tilted position of the blade 9, the wing nut I9 may be loosened and the guard l2 adjusted relative to the edge of the blade 9 and clamped into adjusted position by tightening said Wing nut.

The foregoing will, it is believed, suffice to impart a clear understanding of my invention, without further explanation.

Manifestly, the invention, as described, is susceptible of modification, Without departing from the inventive concept, and right is herein reserved to such modifications as formed in the scope of the appended claims.

Having described my invention, What is claimed a new is:

1. A safety razor including a handle having a front end yoke, a blade in said yoke having end trunnions pivoted to said yoke for tiling of said blade in the yoke, a guard backing said blade, means pivotally connecting said guard to said trunnions for tilting to tilt said blade, a lever on said guard for tilting the same, and means to lock the lever to the handle in the different tilted po- 4 sitions of the guard comprising an axial pin threaded into said handle, and a slot in said handle receiving one end of said lever and into which the pin is adjustable for clamping engagement with said end of the lever.

2. A safety razor including a handle having a front end yoke, a blade in said yoke having end trunnions pivoted to said yoke for tilting of said blade in the yoke, a guard backing said blade, means pivotally connecting said guard to said trunnions for tilting to tilt said blade, a lever on said guard for tilting the same, and means to lock said lever to said handle in the difierent tilted positions of said guard comprising a pin threaded into said handle, and a slot in said handle receiving one end of the lever and into which the pin is adjustable into clamping engagement with said end of the lever, said end of the lever being provided with an opening therein into which said pin is adjustable to lock the lever in one tilted position of said guard.

HARRY B. CARTER.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 999,489 Eden Aug. 1, 1911 1,290,018 Goodwin Dec. 31, 1918 2,482,152 Carter Sept. 20, 1949 

